Shoe-sewing machine.



No.'838,18 2 PATENTED- DEG. 11,1906. J. B. HADAWAY.

SHOE SEWING MACHINE.

APPLIOATION FILED JAN. 16. 1904. v

3 SHEETSSHEET 1.

WITNESSES No. 838,182. PATENTED DEC. 11, 1906.

J; B. HADAWAY. SHOE SEWING MACHINE.

APPLICATION FILED 3111.16. 1904 3 SHEETS-SHEET 2.

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110 338,182. PATENTED DEC. 11; 1906.

.J. B. HADAWAY. SHOE SEWING MACHINE.

APPLICATION FILED JAN. 16 190 2.

3 SHEETS-SHEET 3.

WTNILSSEQS INVENTOR Uldiiifiilll' @Tirilifittl Specification of Letters Eatent.

Patented Dec. 11, 19 O6.

Application filed January 16, 1954. Serial No. 189.249.

To (call wrtom it may concern:

Be it known that I, JOHN B. HADAWAY, a citizen of the United States, residing at Brockton, in thc'county of Pl nnouth and State of Massachusetts, have invented certain new and useful Improvements in Shoe- Sewin Machines; and I do hereby declare the fol owing to he full, clear, and exact description of the invention, so" as will enable others skilled in thenrt t which it appen tains to make and the same.

This invention relates to ice-sewing machines having means for separating or indenting the stitches during the o eration of sewing the sole of a shoe to the we t. In new chines of this type as previously proposed the stitch-separating devices have been arranged to o crate continuously during the operation of tile sewing mechanism, so that in sewing a shoe the stitches would be separated along the entire seam. This is undesirable, as it is customary to separate the stitches only around the fore part of the shoe and to leave the seam smooth in the shank, which imparts a more pleasing finish to the shoe.

It is the object of the present invention to produce a sewing-111achine having stitclrseparating means which may be thrown into or out of operation during the continued operation of the sewing instrumentalities, so that insewing' a shoethe portions of the seam at the shank may be left smooth, the stitchseparating device being inoperative during the formation-of these portions of the seam, while the stitches around the fore part of the sole are se arated in the usual manner by throwing t e separating device into operation during the formation of this part of the seam.

To this end the invention consists in the improved sewing-machine hereinafter shown and described, and particularly defined in the claims.

The invention is applicable to all forms of Welt-stitching machines irrespective of the nature ofthe stitches formed or the form or mode of operation of the sewing instrumentalities, and it maybe embodied in a fairstitch machine as well as in a lock-stitch ma chine.

The inventiorras illustratedin the drawingsis embodiedfas an imprqvomcnt in the machine described and shown in Letters Patent of the United States, No. 616,314, granted to me December 20, 1898.

in the drawings, Figure l a front elevation of'a portion of a sowing-machine embodying the present invention. Fig. 2 is a plan view (ill the same, and Fig. 3 is a rightiand side elevation.

Vfith the exception. the means for throwing the stitell-separating device into and out of operation the illustrated embodiment of the ,rcscnt invention is constructed like that of t 10 above-mentioned Letters Patout. The stitchelorming mechanism is, as in the said patent, substantially like that shown and described in United States Patent No. 473,870, issued to the Goodyear Shoo Machinery Company as the assignce of Z. T. French and Vt illiam C. Meyer and dated April 26, 1892, to which patent reference maybe had for information relative to parts of the machine not show u the accompanying drawings.

The sewing instrumeu m'ties shown in the drawings comprise the needle 1, the awl 2, the work-rest 3, and the Presser-foot4, all constructed and operated as in the said Patent No. 473,870, with the exception of the 1nodification of the presser-foot mechanism de scribed in the said Patent No. 616,314. The needle is carried by a segment 5, loosely mounted on a stud 6, projecting from a por tion? of the frame of the machine. e awl is carried by a segment 8, loosely mmnrtedon astud 9, carried by the standard .10, secured to the feed-slide 11. 'The'p're cured to a lever 12, pivoted on cured to 0. art 14 of the frame oi the machine. The stitc -separating mechanism, with. the exception of the actuating'rcam, is all carried by a frame 20,fii-:ed by set-screws 21 22 to extensions from the stud 13 and a stud 15, u on which the thread-lifter lever 16 is carried. he stitch-separating tool 23 is carried by an arm 24, provided with a stem 25, mounted to OS- v cillate in the arm 26, projectingv from the frame 20. Alever 27, secured to the end-of the stem 25, is connected bya link with a camlever 29, pivoted upon a fulr..-un1-stud 30,.

mounted in the frame 20. The upper end of the cam-lever carries a roll 31, which bears against the periphery of a cam 32, secured to no 13, se-

, i in ail-elongated hole.

the mainshaft33 of thesewing-machine. The separator indents the stitches around this periphery of the cam is circular, except for a short rise" 34. A spring 39 bears against the frame and the cam-lever 29 and tends to return the switch-separating tool to its retracted position. The parts so far described operate substantially like the machine of the said Patent No. 616,314, the rise 34 on the i cam 32 periodically actuating the stitch-separating tool through the connections described to cause it to swing forward and engage the welt of the shoe between the stitches, so as to separate the same by an indentation, this operation taking place while the needle and awl are withdrawn from the work and just before the awl enters the work to pun cture and feed the same.

The means for throwing the stitch-separating mechai'iism into andout of operation comprise a hand-lever 40, mounted on a stud 41, secured to the frame 20. The hand-lever has a slot 42, embracing the fulcrum-stud 30, upon which the cam-lever is mounted. The slot 42 is curved eccentrically to the stud 41, so-that when the hand-lever is drawn forward from the position shown in the drawings the fulcrum-stud will be drawn toward the stud 41, the stud 30 being mounted loosely 35 in the frame 20 and having a flange 36 and a washer 37, secured by a nut 38, for guiding it in the hole 35. The hand-lever is secured in place on the stud 41 by a nut 43 and a lock-nut 44, which may be adjusted so as to subject the lever to sullicient friction to prevent its accidental displacement from the position into which it is thrown by the operator. A screw 45, adjustably secured by a nut 46 in lug 47 on the arm 26, engages the lever 27 and through the link 28 prevents the cam-lever from swinging farther to the right than the position shown in the drawings. Consequentlywhen the hand-lever is drawn forward, as described, the movement of the fulcrum-stud 30 draws the cam-roll out of contact with the cam, and the operation of the stitch-separating mechanism is thus interrupted without affecting the operation of the sewing mechanism,and the stitclr separating tool remains in its retracted position. v

The present invention contemplates in its broader aspects any means for interrupting the operation of the stitch-separating device, whether by causing the actuation thereof to be interrupted or by preventing the separating-tool from work. i

In the operation of sewing a shoe upon this machine the seam is started at the heel and the hand-lever is drawn forward so as to throw the stitch-separating mechanism out of operation while the shank is being sewed. As soon as the fore part of the sole is reached the hand-lever is throwp back and the stitchcommg in contact with the operation may part. The lever is again drawn forward when the other side of the shank is reached, so as to leave this part of the seam smooth.

The present invention is not limited in its application to the specific forms of sewing mechanism and stitch-separating mechanism described, and the means for throwing the stitch-separatin be embodied in many other forms broadly defined by the claims.

. Having thus described my invention, I claim as new and desire to secure by Letters Patent of the United States- 1. A shoe-sewing machine, having, in combination, stitch-forming mechanism, a stitchseparating device, and means for throwing the stitch-separating device into and out of operation during the continued operation of the machine, substantially as described.

:2. A shoe-sewing machine, having, in combination, stitch-forming mechanism, a stitchseparating device, mechanism for actuating the stit ch-sep arating device, and means for interrupting the operation of the said actuating mechanism during the continued operation of the machine, substantially as described.

3. A shoe sewing machine, having, in combination, stitch-forming devices, a stitchscparating device, mechanism for actuating the stitchforming devices, independent mechanism for actuating the stitch-separating device, and means for throwing the stitch-separating device into and out of operation during the continued operation of the machine, substantially as described.

4. A shoe-sewing machine, having, in combination, stitch-forming mechanism, a stitchseparatim latter incliiding a lever mounted on a movable fulcrum, and means for moving the fulcrum to throw the stitch-separating device mechanism into and out of device, means for actuating the into and out of operation, substantially as described.

5. A shoe-sewing machine, having, in combination, stitch-formin mechanism including a needle and an awl, a stitch-separating device means for actuating the said device to engage the work while the m cdle and avid are wlthdrawn therefrom, and means for throwing the stitch-separating device intoand out of operation during the continued operation of the machine, substantially as described;

' 6. A shoe-sewing machine, having; bination stitch-forming mechanism, separating device, means for actuati the latter comprising alever, a cam-roll carried thereby and a cam engaged by the cam-roll, and means for holding the cam-roll out of contact with the cam to interrupt the operation of the stitch-separating devices, substantially as described.

7. A Shoe-sewing machine, having, in combination, stitch-forming mechanism, a-stitch-.

thereof, substantially as described.

separating device, and independent means during the continued operation of the mafor actuating such device having provision j chine, substantially as described. to for interrupting the separating operation 1 In testimony whereof I affix my signature 1 in presence of two Witnesses.

8. A shoe-sewing machine, having, in comi JOHN B. HADAVVAY. bination, stitch-forn in mechanism, and WVitncsses: stitch-separating nieans having provision for I FARNUM F. DORSEW, interrupting the separating operation thereof HORACE VAN Fivmmw 

